When a stock doubles, sell half - then what you have is a free position. Then it becomes more of an art form. When you sell depends on individual circumstances.
Peter CundillThe company must be profitable. Preferably it will have increased its earnings for the past five years and there will have been no deficits over that period.
Peter CundillThe difference between the price we pay for a stock and its liquidation value gives us a margin of safety. This kind of investing is one of the most effective ways of achieving good long term results.
Peter CundillThe company must be paying dividends. Preferably the dividend will have been increasing and have been paid for some time.
Peter Cundill